. >>> general david petraeus is saying good-bye to his troops in afghanistan. he will soon be the new director of the cia. he spoke with mandy clark of cbs news about the president's plan to withdraw 1/3 of u.s. troops over the next year. >> it is no secret that you wanted a slower draw down. do you feel you have enough troops to do the job? >> first, it is probably time to stop second guessing the decision only the president can make. only he has the full range of issues and considerations he has to deal with. that decision has been made and it is now the job of military commanders and troopers to get on with it. >> well, in afghanistan, general petraeus led a re- enlistment ceremony for hundreds of our troops. >>> in just a few hours, the jury in the casey anthony murder trial gets back to work. it spent the 4th of july holiday listening to closing arguments and getting deliberations underway. melissa rainey has more on the tragic murder case that has people captivated. >> after six weeks of testimony, jurors in the casey anthony trial went to the deliberatio